Too much weight, shocks, hits and change of headlight will require headlight adjustment, to realign them.
Preparation:
The vehicle has to installed Headlight control module, and should be stay horizontal, steering wheel in the middle and no passenger/weight.
Go into the HCM, and turn ignition ON, turn dipped light ON, manually realign these lights. And then tap OK on tablet to writing in data. Turn light off and ignition off.
All done.The tool; I use is topdon artipad.